Mobile ECG sensor



FIG. 1 is a perspective view of a mobile ECG sensor;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is an end view thereof; and,

FIG. 5 is a bottom view thereof.

The broken lines shown in FIGS. 1 and 3 represent an environment andform no part of the claimed design.

CLAIM The ornamental design for a mobile ECG sensor, as shown and described. 